Steel
Steel is made with iron ore and limestone. First the iron ore and limestone is smelted by a blast furnace. Steel is iron that has most of impurities removed. The steel is heated to about 1,600 degrees Fahrenheit.
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Brick
Brick is made from clay and shale and is fired in a kiln at a temperature around 2,000°F it then goes through a chemical transformation. The materials then fuse together and create a hard long lasting material.
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Concrete
There are many types of concrete and also many steps to pour it. First you have to get your site ready and have a plan for what you are going to do. Also along with the planing stage you have to set up your form for the concrete to rest in so it can dry. Next after you have your form up you have to pour the concrete. Then you are early finishing the concrete so it is compact and consolidated. Last like the early finishing you are toweling and finishing the concrete and then you just have to let it cure or harden for around 28 days the first 48 hours are the hardest part. Concrete is used in many things like making building columns and residential things such as driveways, paving, house foundation, and walls.
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